Thirteen new Costa Rican species belonging to the genus Triraphis Ruthe (Braconidae: Rogadinae) with their host records
Author
Valerio, Alejandro A.
Author
Shaw, Scott R.
text
Zootaxa
2015
3904
4
501
540
journal article
10.11646/zootaxa.3904.4.2
fa11cea5-49f4-46df-b76d-f46a53e5b27b
1175-5326
234390
08A27285-F812-43C3-B120-D4BDDB5629D5
Triraphis baios
Valerio
,
sp. nov.
Description
.
Female. Body color:
yellow, with antenna basal 1/3 brownish yellow as scape, pedicel, tarsal claws and telotarsus; head, mesonotum, metapleuron, fore leg, and remainder tarsomeres honey yellow as hind tibia and hind femur distal 2/3; second metasomal tergum whitish yellow. Fore wing: M+CU distal 1/3 and 1
–
1A distal 1/4 brownish yellow as C+SC+R; hind wing: union of veins 1M, r
–
m, 2M brownish yellow, remainder veins yellow. Wings hyaline, sometimes a light yellow coloration present. Body length =
4.29
–
5.21 mm
; fore wing length =
4.28
–
5.57 mm
.
Head
: Head height/head length = 1.23
–
1.31; maximum height of compound eye/maximum width of compound eye = 1.43
–
1.53; distance between basal edges of tentorial pits and the basal area of toruli/Maximum width of face measured at dorsal edge of clypeus = 1.11
–
1.16; width of vertex/minimal distance between toruli and the medial ocellus = 2.31
–
2.67; width of oral opening/height of oral opening = 1.64
–
2.00; distance between tentorial pits =
0.16
–
0.21 mm
; minimal distance between external edge of tentorial pits and compound eye =
0.06
–
0.08 mm
. Antenna, flagellomere all longer than wide, between 35
–
38; malar space as wide as basal width of mandible; occipital carina present dorsally and divided (sometimes divided and narrow dorsally), not fused with hypostomal carina; median ocellus as big as Lateral ocellus; space between lateral ocellus black; ocell-ocular distance almost 1/ 2 lateral ocellus width.
Mesosoma
: Length of mesosoma in dorsal view/width of mesosoma = 2.52
–
2.76; height of mesosoma =
1.03
–
1.09 mm
; propleuron dorso-lateral area, basal areas with defined colliculate sculpturing, remainder nitid; notauli punctate, pits from smaller laterally to bigger medially, almost absent medially; medial longitudinal pit present, with fine longitudinal punctate sculpturing present; mesonotum distal 1/4 with confused colliculate sculpturing medially, remainder nitid; sternauli with fine and spaced striate sculpturing, not conspicuous as union with prepectal carina, area below nitid as remainder mesopleuron; mesopleuron dorso-lateral area with confused colliculate sculpturing and little large lineate sculpturing; metapleuron granulate, only ventral edge with few rugose sculpturing; propodeum, spiracles sub-circular; first lateral areas of propodeum with light areolate-rugulose and fine granulate sculpturing remainder with less defined colliculate sculpturing and spaced areolate-rugulose sculpturing present; medial carina 1/4 propodeum height; areola triangular; ventral tubercles present without carinae over them and densely granulate.
Legs
: basal lobe of hind tarsal claws elongate and acute at tip.
Wings
: fore wing: 1Cub/RS+Ma = 1.11
–
1.19; 3RSa/1RS = 3.42
–
3.80; pterostigma length/width = 2.00
–
2.43
–
; r =
0.23
–
0.26 mm
. hind wing: 1M/r
–
m = 1.94
–
2.00; 1A/cu
–
a = 2.25
–
2.33; m+cu =
0.56
–
0.65 mm
; m+cu sub
–
interstitial with 2RS; 2RS straight; angle at union of veins 2RS
–
2M acute; pterostigma inner 1/2 medially brownish yellow, remainder yellow.
Metasoma
: Length of first metasomal tergum/width of first metasomal tergum = 1.08
–
1.18; length of second metasomal tergum/width of second metasomal tergum = 0.76
–
0.88; length of third metasomal tergum/width of third metasomal tergum = 0.33
–
0.45; basal width of first metasomal tergum =
0.32
–
0.38 mm
; hypopygium =
0.35
–
0.47 mm
. first metasomal tergum dorso
–
basal triangular area of first metasomal tergum open with carinae present, medial carina normal; first metasomal tergum lineate sculpturing as second metasomal tergum sculpturing; third metasomal tergum lineate sculpturing finer, closer, denser and less conspicuous than second metasomal tergum sculpturing, not reaching third metasomal tergum distal edge and less conspicuous medially; fourth metasomal tergum without fine lineate sculpturing.
Males
. Similar to females.
Female
holotype
.
Costa Rica
, Limón, Guápiles,
400 m
.
14/x/1995
, Col. Priscilla Ch.
Paratypes
:
11 females
,
3 males
;
5 females
,
1 male
, same data as
holotype
; Guanacaste, ACG: sector Santa Rosa, Cafetal,
11/i/1992
, Col. D.H. Janzen; 1 same data except sector and date, sector Santa Rosa, Casona Santa Rosa,
7/xii/1990
; (4) Limón, Cariari,
ii/1994
, Col. M. Arguedas.
Holotype
and
paratypes
have been deposited at the RMSEL; two
paratypes
deposited at MUCR and INBio.
Distribution
. The altitudinal range of this species is from
10
–
400 m
.; the
type
of forest occurring at the site of collection for some of the specimens were tropical moist/wet forest and tropical dry forest; other specimens were collected at a coffee plantation neighboring a secondary forest.
Biology
. Specimens reared from some unidentified larvae feeding on
Hieronima alchorneoides
(Euphorbiaceae)
, called “Pilón”;
Napaea umbra
(Riodinidae)
feeding on
Bromelia pinguin
(Bromeliaceae)
and
Melanis sanguinea
(Riodinidae)
feeding on
Albizzia adinocephala
(Fabaceae)
. It is a gregarious parasitoid. The reported ratio of sexes found for the first host was
5 females
and
2 males
; for the second host were observed
6 females
and
1 male
.
Comments
. Currently there is an undescribed species of
Triraphis
very similar to
T. baios
but can be separated from it by the ocell-ocular distance divided by width of lateral ocellus that is smaller than or equal to 0.5x present in this underscribed species. The undescribed species will fully treated in a forthcoming publication.
Etymology
. This species is named for the small size of the body; “
baios
” in Greek means small, little.